Don't uninstall rdo-release
Rename delorean json file to just packages
Delorean is no longer the default, and add a new variable to control installing from packages or not, $PACKAGES
Add element to setup rdo juno stage repo
Add script to setup delorean
Update install scripts and build images to use RDO juno stage repo by default
Remove some unneeded workarounds
only attempt install if these packages aren't already installed
Install rdo-release to setup the stage repo for juno if not already installed.